【填空题】
102. 两种病毒感染同一细胞时，一种病毒抑制另一种病毒增殖的现象称为___。
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相关试题
【单选题】
下列应用场景中，不属于AgileController的访客接入管理的场景的是：___
A. 客户沟通、交流、参观等介入企业网络，访问企业公共资源或Internet
B. 普通民众通过公共世界单位提供的网络访问Internet
C. 客户在企业消费，连接企业网络访问Internet
D. 公司员工出差到分公司，链接分公司网络访问公司网络。
【单选题】
下面哪项为配置SDN控制器侦听地址的命令？___
A. Openflowlistening-ip1.1.1.1
B. Sdncontrollersoure-address1.1.1.1
C. Controller-ip1.1.1.1
D. Sdnlistening-ip1.1.1.1
【单选题】
DHCP服务器分配给客户端的动态IP地址。通常有一定的租借期限，那么关于租借期限的描述，错误的是：___
A. 租期更新定时器为总租期的50%，当“租期更新定时器”到期时，DHCP客户端必须进行IP地址的更新
B. 重绑定定时器为总租期的87.5%
C. 若“重绑定定时器”到期，但客户端还没有收到服务器的响应，则会一直发送DHCP REQUEST报文给之前分配过IP地址的DHCP服务器，知道总租期到期。
D. 在租借期限内，如果客户端收到DHCP NAK报文，客户端就会立即停止使用此IP地址，并返回到初始化状态，重新申请新的IP地址
【单选题】
ASPF(Application Specific Packet Filter)是一种基于应用层的包过滤，它会检查应用层协议信息并且监控链接的应用层协议状态，并通过Server Map表实现了特殊的安全机制。那么关于ASPF和Server Map表的说法，错误的是：___
A. ASPF监视通信过程中的报文
B. ASPF动态创建和删除过滤规则
C. ASPF通过Server map表实现动态允许多通道协议数据通过
D. 五元组Server-map表项实现了和会话表类似的功能
【单选题】
如图所示，在网络中配置了MPLS LSP，并在SWA和SWB之间实现本地LDP会话，则以下说法正确的是：___
A. 配置正确
B. 两台设备mplslsr-id不能配置成一样
C. 不需要全局使能MPLS
D. 不需要在端口上时能MPLS
【单选题】
在域间包过滤中，以下属于outbound方向的是哪个选项？___
A. Trust->untrust
B. Untrust->trust
C. Untrust->dmz
D. Trust->local
【单选题】
中间人攻击或IP/MAC Spoofing攻击都会导致信息泄露等危害，且在内网中比较觉。为了防止中间人攻击或IP/MAC Spoofing攻击，可以采取的配置方法有：___
A. 配置trust/untrusted接口
B. 限制交换机接口上允许学习到的最多MAC地址数目
C. 开启DHCP Snooping检查DHCP REQUEST报文中CHADOR字段的功能
D. 在交换机上配置DHCP Snooping域DAI或IPSG进行联动
【单选题】
针对MAC地址欺骗攻击的描述，错误的是：___
A. MAC地址欺骗攻击主要利用了交换机Mac地址学习机制
B. 攻击者可以通过伪造的源Mac地址数据帧发送给交换机来实施MAC地址欺骗攻击
C. MAC地址欺骗攻击造成交换机学习到错误的Mac地址与IP地址的映射关系
D. MAC地址欺骗攻击会导致交换机要发送到正确目的地的数据被发送给攻击者
【单选题】
要实现设备的所有接口，都开启BFD与OSPF联动___
A. Bfd enable
B. Bfd all-interface enable
C. All-interface bfd enable
D. Undo bfd all-interface disable
【单选题】
在Agile Controller的准入控制场景中，下列选项关于RADIUS服务器与客户端角色的描述正确的是：___
A. Agile Controller集成了RADIUS服务器与客户端的所有功能
B. Agile Controller作为RADIUS服务端，用户终端作为RADIUS客户端
C. 认证设备<如802.1X交换机>作为RADIUS服务器端，用户终端作为RADIUS客户端
D. Agile Controller作为RADIUS服务器端，认证设备<如802.1X交换机>RADIUS客户端
【单选题】
下列关于防火墙的域间安全策略的描述，正确的是：___
A. 域间安全策略按照排列顺序匹配，排列在前的有限匹配
B. 域间安全策略按照ID号码大小匹配，号码小的优先匹配
C. 域间安全策略按照ID号码大小匹配，号码大的优先匹配
D. 域间安全策略按照序号大小自动排列，当改变排列顺序，号码也跟着改变
【单选题】
对于此段配置描述错误的是：___
A. 配置gigabitethernet0/0/1接口为信任接口
B. 如果gigabitethernet0/0/1接口收到DHCP请求报文中，没有option82的suboption1信息，则设备会生成option82，并插入到报文中
C. 开启DHCP Snooping配置可以用来防止DHCP Sserver仿冒者攻击
D. 开启DHCP Snooping配置可以用来防止ARP欺骗攻击
【单选题】
MPLS中有转发等价类<FEC-Forwarding Equivalence Class>的概念。那么FEC不能基于下列哪些标准进行分配？___
A. 碎片偏移量
B. 目标地址
C. 应用协议
D. 服务类别
推荐试题
【单选题】
In vSphere Data Protection 6.1, which is the function of a Backup Verification job?___
A. None. Backup Verification job is not a feature of vSphere Data Protection
B. It is a manual task -Power it on -Verify the guest OS -Check started applications
C. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OS is booted by communicating with the Backup Verification agent
D. It is an automatic process -Restore a virtual machine -Power it on -Verify that the guest OC is booted by detecting the VMware ToolsTM "heartbeats"
【单选题】
An administrator has enabled vSphere Distributed Switch Health Check. The hosts connected to that Distributed Switch all display an alert:< vSphere Distributed Switch MTU supported status > .The administrator has all of the VMkernel ports MTU sizes set to 1600. Which action will remedy this problem?___
A. Configure the Distributed Switch to MTU 9100.
B. Disconnect and reconnect the physical network cable.
C. Configure the physical switch to MTU 1600.
D. Disable the Distributed Switch MTU.
【单选题】
Which Host Profile Subprofile configuration is used to configure firewall settings for ESXi hosts?___
A. Advanced Configuration Settings
B. General System Settings
C. Security
D. Networking
【单选题】
Where would a vSphere administrator find general vCenter Server logs on a vCenter Server Appliance?___
A. /var/log/vmware/vpxd/
B. /var/log/messages
C. /etc/vmware-vpx/
D. /var/log/vmware/vsan-health/
【单选题】
An administrator wishes to enable network port mirroring based on source port. Which feature should be enabled?___
A. vSphere standard switch port
B. ERSPAN
C. NSX Virtual Wire
D. VLAN
【单选题】
Which CLI command shows the physical uplink status for a vmnic?___
A. esxcli network ip connection list
B. esxcli network ip neighbor list
C. esxcli network nic get
D. esxcli network nic list
【单选题】
Which is the maximum number of block devices (LUNs) that are supported by ESXi hosts that are running version 6.5?___
A. 1024
B. 512
C. 2048
D. 256
【单选题】
When performing a vCenter Server 5.5 for Windows with Microsoft SQL Server Express database migration to vCenter Server Appliance 6.5, which will be the target database?___
A. Microsoft SQL Server Express 2012R2
B. Microsoft SQL Server Standard 2012R2
C. PostgreSQL
D. Oracle DB 11g
【单选题】
An administrator has multiple vCenter Server 6.5 systems but cannot enable Storage I/O Control (SIOC) on a datastore shared by ESXi hosts managed by the vCenter Server systems. Which action should the administrator take to resolve the issue?___
A. Unmount the datastore and then enable SIOC on the vCenter Server system.
B. Configure the datastore to be managed by a single vCenter Server system.
C. Configure Storage DRS and then enable SIOC on the vCenter Server system.
D. Enable Raw Device Mapping (RDM) on the
E. SXi hosts.
【单选题】
“OneAppServer” is a VM template stored in a content library named “LibraryOne”, but the vSphere administrator is not able to use this template for deployment. Why is the administrator unable to deploy OneAppServer?___
A. OneAppServer must be updated before it can be deployed.
B. LibraryOne is a subscribed library and OneAppServer is not downloaded yet.
C. LibraryOne is published and optimized for syncing over HTTP.
D. OneAppServer was imported from a local file on the system.
【单选题】
An administrator sets the Failover Capacity for both CPU and Memory at 25%. Based on the Exhibit below, how much of the cluster’s total CPU resources are still available to power on additional virtual machines?___
A. 45%
B. 25%
C. 70%
D. 60%
【单选题】
Which statement applies to the vSphere Replication appliance?___
A. Only one vSphere Replication appliance can be deployed per vCenter Server instance.
B. VMware Tools in the vSphere Replication appliance can be upgraded.
C. A single vSphere Replication appliance can manage a maximum of 4000 replications.
D. vSphere Replication is available only with the vSphere
E. ssentials Plus license.
【单选题】
Which esxcli namespace can a vSphere Administrator use to adjust the queue depth?___
A. esxcli system module parameters
B. esxcli storage core device
C. esxcli system module set
D. esxcli storage core adapter
【单选题】
Which statement regarding datastore clusters meets VMware’s recommended best practices?___
A. Clusters should contain only datastores presented from the same storage array.
B. Clusters should contain only datastores with equal hardware acceleration capability.
C. Clusters should contain only datastores with the same capacity.
D. Clusters should contain only datastores using the same connection method (iSCSI, FC, etc.).
【单选题】
What VM Monitoring setting would ensure that the maximum reset window for a virtual machine is 24 hours?___
A. Medium
B. Low
C. High
D. Normal
【单选题】
What is the default space threshold for vSphere Storage DRS?___
A. 80%
B. 70%
C. 90%
D. 95%
【单选题】
Which is the correct sequence to upgrade a vSphere infrastructure?___
A. vCenter Server>ESXi host> VMware Tools>VM compatibility
B. ESXi host>vCenter Server> VMware Tools>VM compatibility
C. vCenter host> ESXi host> VM compatibility> VMware Tools
D. ESXi host>vCenter Server> VM compatibility>VMware Tools
【单选题】
An administrator has a large boot from SAN cluster and wants to ensure consistent configuration by using host profiles. What special considerations are required for boot from SAN hosts?___
A. Change the “Device is shared clusterwide” setting to “false” in the host profile.
B. Verify that the boot LUN is correctly identified as the boot device in the host profile.
C. The boot from SAN device must report as a local device.
D. Host profiles are incompatible with boot from SAN hosts.
【单选题】
When using VMware Converter to import a Windows server and improve the consistency of the destination virtual machine, which optional step can be performed immediately prior to powering down the source server?___
A. Perform a final synchronization task.
B. Remove the server from the network.
C. Uninstall production applications.
D. Remove the server from the Active Directory domain.
【单选题】
Restoration of the vCenter Server Appliance is accomplished using which interface?___
A. vSphere Web Client
B. vSphere Client
C. vCenter Server Appliance Management Interface
D. vCenter Server Appliance GUI Installer
【单选题】
When attempting to migrate a virtual machine to another host in the same cluster, the error message, “Select a valid compute resource” returns. What could cause this error?___
A. Both hosts run different versions of ESXi.
B. Both hosts are not sharing the same datastore.
C. VMware Tools is not installed.
D. Virtual machine has an ISO attached.
【单选题】
When will vSphere Data Protection delete the expired backup image of a Platform Service Controller?___
A. Immediately after the retention period has expired.
B. After the expired backup image is restored.
C. During the next backup window following expiry.
D. During the next maintenance window following expiry.
【单选题】
Group A has permission to download files in Content Library. Group B does not have permission to download files in Content Library. If a user is a member of both groups, what will be the result?___
A. The user cannot download file from Content Library.
B. The user can download file from Content Library.
C. The user cannot access Content Library.
D. The user can access Content Library.
【单选题】
An administrator is trying to set up Host Partial Failure Response, but the Automated option is grayed out. What can the administrator change to enable the Automated option?___
A. Change the vSphere DRS Automation level to Partially Automated.
B. Change the vSphere DRS Automation level to Fully Automated.
C. Enable vSphere HA Host Monitoring.
D. Change the vSphere DPM Automation level to Automatic.
【单选题】
When you attempt to open a virtual machine console from the vSphere Web Client, the console does not connect. The following error message appears:<HTTP ERROR 404> <Problem accessin/.Reason: Not Found>. Why did not connect?___
A. Port 443 is in use.
B. Port 9443 is in use.
C. Port 8443 is in use.
D. Port 22443 is in use.
【单选题】
What new feature was introduced to the Content Library in vSphere 6.5?___
A. Mount an ISO directly from the Content Library.
B. Deploy a virtual machine from an OVF Package in a Content Library.
C. Upload a File from a URL to a Library Item.
D. Upload a File from a Local System to a Library Item.
【单选题】
How can an administrator exclude Encryption rights from a support engineer?___
A. Clone the role Virtual machine power user, remove Cryptographic operations privileges.
B. Clone the role Administrator and assign to the support engineer.
C. Clone the role Virtual machine power user and assign to the support engineer.
D. Clone the role No cryptography administrator and select privileges only for the support engineer.
【单选题】
The administrator must back up a vCenter HA deployment. Which component must be backed up?___
A. Passive node
B. Witness node
C. External database
D. Active node
【单选题】
What is the supported protocol to perform remote L3 traffic monitoring in vSphere 6.5?___
A. VXLAN
B. ERSPAN
C. RSPAN
D. SPAN
【单选题】
What are the minimum hardware requirements for a Windows vCenter Server with embedded PSC that manages a “Small” environment?___
A. 2vCPUs, 16 GB RAM
B. 4 vCPUs, 16 GB RAM
C. 2 vCPUs, 10 GB RAM
D. 4 vCPUs, 10 GB RAM
【单选题】
Which port is used for communication between ESXi and vSphere Data protection?___
A. 80
B. 443
C. 902
D. 22
【单选题】
What can prevent Storage DRS from functioning on a datastore?___
A. The datastore is configured for Virtual Machine Swapfile location.
B. The datastore is shared across multiple datacenters.
C. The datastore is connected to a host that is running Storage I/O Control.
D. Storage DRS advanced option IgnoreAffinityRulesForMaintenance is set to 1.
【单选题】
When troubleshooting VMware vCenter Server issues, when logging level provides maximum detail?___
A. Verbose
B. Trivia
C. Info
D. Error
【单选题】
What new feature is introduced in NFS 4.1 on ESXi 6.5?___
A. IPv6
B. KRB5i
C. AUTH_SYS
D. Storage DRS
【单选题】
What configuration option would ensure that a virtual NUMA topology is defined on VMs having more than eight virtual CPUs?___
A. cupid.coresPerSocket
B. numa.vcpu.followcorespersocket
C. numa.vcpu.maxPerVirtualNode
D. numa.vcpu.min
【单选题】
What is the minimum disk space required to deploy vSphere Data Protection (VDP) with 8 TB configuration?___
A. 4 TB
B. 16 TB
C. 8 TB
D. 12 TB
【单选题】
What advanced option for vSphere HA defines a maximum number of reset attempts by VMCP for a virtual machine?___
A. das.maxterminates
B. das.isolationshutdowntimeout
C. das.maxresets
D. fdm.isolationpolicydelaysec
【单选题】
What vSphere technology enables the administrator to ensure consistent configuration at scale?___
A. PowerCLI
B. Host Profiles
C. esxcli
D. vSphere Web Client
【单选题】
Which port is used for vSphere HA agent-to-agent communication?___
A. 443
B. 8182
C. 22
D. 902
【单选题】
Which log file would assist in identifying an issue that occurred during the database export phase of a vCenter Server upgrade process?___
A. vcdb_import.out
B. export.json
C. export-upgrade-runner.log
D. vcdb_export.out
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